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- Опубліковано 25 сер 2024
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I review the Feeltech FY6800 60 MHz arbitrary waveform signal generator, which was supplied to me by Banggood.com, please take a look at the links below!
FY6800 2-Channel DDS Arbitrary Waveform Signal Generator: defs.link/?u=3...
You can download the FY6800 user manual and software from www.feeltech.net and from my Patreon page.
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Some Of My Electronics Tools (video and purchase links)
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Boonton
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4220.
8210: defs.link/?u=e...
Fluke
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8842A:
45: defs.link/?u=e...
343A: defs.link/?u=1...
5200A: defs.link/?u=a...
540B: defs.link/?u=0...
893A.
A90.
HP/Agilent/Keysight
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4261A: defs.link/?u=0...
5005A.
5342A 18GHz: defs.link/?u=5...
6181B: defs.link/?u=b...
8012B: defs.link/?u=c...
8648B: defs.link/?u=d...
8901B: defs.link/?u=5...
DSOX1102G: defs.link/?u=a... defs.link/?u=1...
E3646A: defs.link/?u=1...
Marconi
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2022D.
2955.
TF2103: defs.link/?u=6...
Rohde & Schwarz
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SMY: defs.link/?u=9...
CMU200: defs.link/?u=8...
Polarad SPN: defs.link/?u=2...
Siglent
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SDM3065X: defs.link/?u=1... defs.link/?u=1...
SDS2102 (hacked to 340MHz): defs.link/?u=1... defs.link/?u=1...
SPL-1008.
SDP1168X: defs.link/?u=1... defs.link/?u=1...
SDL1020X-E: defs.link/?u=a...
Other Equipment
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KSGER T12 Soldering Iron: defs.link/?u=6... defs.link/?u=5c...
Quick 861DW: defs.link/?u=1... defs.link/?u=a...
S-993A: defs.link/?u=0... defs.link/?u=e...
EEVBlog BM235: defs.link/?u=1...
YR1030 Battery ESR: defs.link/?u=c...
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: defs.link/?u=8...
Bird 43: defs.link/?u=4...
Sinadder 3: defs.link/?u=2...
Audio Control SA-3050A RTA: defs.link/?u=a...
Korad KA3305D: defs.link/?u=6...
PDVS2mini: defs.link/?u=8...
Valhalla 2703: defs.link/?u=0...
Feeltech FY6800: defs.link/?u=8... defs.link/?u=34...
Eakins Microscope: defs.link/?u=b... defs.link/?u=2...
Mustool G600: defs.link/?u=b... defs.link/?u=3...
Handheld Equipment
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Uni-T UT210E: defs.link/?u=3... defs.link/?u=e...
DER DE-5000: defs.link/?u=0... defs.link/?u=1...
MK-328: defs.link/?u=0... defs.link/?u=7...
MESR-100: defs.link/?u=0... defs.link/?u=0...
ESR Meter: defs.link/?u=0...
HOPI: defs.link/?u=7...
PeakMeter PM6252: defs.link/?u=5...
HS1010: defs.link/?u=1...
Thermal Camera: defs.link/?u=2... defs.link/?u=4...
If you are interested in buying one of these (or anything from Banggood), use this link, it ties into my affiliate account: defs.link/?u=34d101
The Defpom's Repair Channel that’s the plan
Thanks for checking this out. As an old fart (60 yo, I started out with electronics in the 1970s), I have quite mixed feelings with these devices. Remember the 1980s/1990s when we had these massive, well-built, calibrated, ultra-exact and ultra-expensive units from Fluke, HP, Keithley and others that nobody could afford? They couldn’t do too much but what they did was _perfect_. Now with the advent of microcontrollers, cheap parts and chinese clones we tend to get devices that seem ultra-functional but often have cluttered, unusable user interfaces, unsafe and questionable construction and are far from exact. But incredibly _cheap_. Hobbyists and sometimes even EE’s start to rely on what I’d often call real bad/faulty measurements.
The old German saying "Wer misst, misst Mist!" (roughly: "Who measures, measures crap!") is more true than ever.
I wonder how my lab will look like in the future. I still have (and buy) 30- to 40-year-old devices like old Fluke, Hitachi, HP/Agilent gear and try to fix them and keep them running but I somehow fear more and more will be replaced by these new el-cheapo (and el-imprecise) devices, since of course I don’t have endless funds. I always feel there’s kinda gap between "ultra-cheap, multi-functional" and "ultra-expensive, real good". Wish there was more gear in the "a little more expensive but okay-ish" range for those whose job moved on to a hobby and those who are just starting out.
That gap is filled by Rigol, Siglent and GW Instek products for instance. Cheers
Back in the day 70’s & 80’s there was no way in hell I could afford any of that fancy test gear.... An old Simpson meter, massive Weller soldering iron, and a knock off Bird wattmeter was all I had..... Now in my 60’s I have loads of this old test gear that I could only once dream of... Tektronix scopes, Phillips scopes ( they were made in Holland) Hewlett-Packard signal generators and Multimeters once used by the military. Motorola service Monitors, Bird Wattmeters and still to this day my trusty old Simpson meter!!!! Sure, not as flashy or Bells and Whistley as today’s modern stuff..... BUT they were built to do a job, they were built to last, they sent us into space and to the moon.... Put together better than the finest watch costing 20 times as much... And are still around for people like me to use and enjoy..... Used pro industry standards gear or today’s bell and whistles knockoffs? Give me that Hewlett-Packard or Tektronix every time...
I have a Siglent scope for $330 on Amazon. I am 60 yo and never could afford one before now. It does great measurements, and I am learning what I missed out on.
The power supply board is the same one that's used in a million cheap DVD players and uses a viper switching chip. Nothing could go wrong with it and if it does just open your Speller DVD player and swap it out. It outputs 12, -12 and 5 volts at about 2 amps or thereabouts.
Just bought one based one your review, for the money you cant go to wrong for the beginner! Thanks for a great video!
FY6900 is out now! Some improvements. BTW, the Hz range can be set with button. MHz, kHz, Hz, mHz, µHz.
Thanks for the video. If you grab the manual for the FY6600 you will find it has a section on the modulation function that is pretty close to that in the 6800.
The English subtitles are even more hilarious than the accent. For instance, at 33:21, "...got a nice house lotion getting down there mess not beer isn't that slot but it does have a gap in the tracers also ice like there so yeah..."
Lol There was something about his scope doesn't have the spicy tuna that gives up the 60Mhz..
I looked in your video library and I didn't see a video with this signal generator , hooked up to a 2 way radio..... I sure do miss my HP signal Jenny ... Will this unit go down to uV ?? Such as tuning the recieve on a Cobra 29 , 25 ETC ETC Injecting a signal of 1KHz with 30%modulation and RF output level of 1.0uV , I don't think the unit will go down that low , Like I said I miss my HP rf signal generator . I am looking at the Junctek 80 meg generator but I don't think that one goes down that far either... There is a lot I can do with it but I need to make sure before I dive headfirst into 150 dollars US and then needing to get another HP... I would like to see you tuning a radio with your Feeltech and see how much it can actually do with a CB ... Thanks again for a great video...
Might be OK as an inexpensive tool to get beginners interested in tech. That's the most positive thing I can say.
I have just purchased the new FY6900 version of this. It's really not bad for the price. I don't find that buzz when using with a radio with modulation at all and 100% modulation only just a hint of over mod.
My main moan about it is the SMPS. It radiates all over the place, almost impossible to use at low levels as the SMPS is picked up by almost everything on the bench, even when not connected to anything.
I think the next project will be to replace the SMPS with a linear power supply. Just got to find out how too open it, sadly not a screw in sight, like yours.
Thx for the video and yep not a bad unit, just as long as you keep having the price in mind.
Also got one, though its the newer model FY6900 60mhz and it is surprisingly packed with features for a unit that I could purchase from EU for a tad over 70USD. (74USD delivered)
at 74USD for a 60mhz DDS AWG, the threes don't grow into the sky, but that goes without saying for such sums..
gonna pimp it a tad, with a solid metal rotary knob, cost a few bucks.
remember to turn it off, after use, the standby is pretty aggressive, at a few watts.
The software works as a treat and connects without any bells and whistles, font not ideal, but make the interface way more manageable, and its more or less instant in reply..
Happy new Year!
I think the amplitude issues were in the main your scope bandwidth -3dB down and incorrect termination. Be interesting to see the harmonic Distortion on the DDS generator output at various frequencies. It looks very useable to me. Is the display as bad in real life as it is on the video, looks like it should be back lit. I assume the transformer at the front of the PSU is actually a common mode choke. Oh just heard the DDS noise errrrrrr however not necessarily and issue for radio work. I have always found the most annoying thing about these cheap signal generators is actually the lack of screening and noise escaping from any port. I could find a place for that with all the features and low price point. Show us the FFT on your scope. Interesting review thanks. Best regards Chris
The scope is rated for 100MHz, I actually went back into its settings to make sure I didn't have its bandwidth filter turned on, it wasn't. I think lack of termination could possibly be the cause of the rolloff, I will set the unit back up at some point to confirm if that was the issue or if it is really gradually dropping off above 20MHz.
The display is small, readability is better in real life though, part of the issue is that I have so much lighting going on it tends to drown it out a bit.
The Defpom's Repair Channel That kind of surprises me, but interesting my 200mhz keysight also reads bang on at 200mhz. incorrect termination at lower frequency like 60mhz normal reads high as the signal generator has 50 ohms internal resistance and the dial is calibrated for 50 ohm load. Most signal generator don’t actually measure the output power as it’s difficult at high frequency and with very low signal levels. Out of interest what is the impedance on the Outputs on the signal generator meant to be. Nice test if you measured it.
I just tested the output terminals, they are loaded with 600 Ohms, its output voltage does jump around when loaded with 50 Ohms, when set to 5V it is doing at most 2.8V pk-pk at 40MHz, at 60MHz it is only 1.4V pk-pk. I did find though that you can set it to do 20V below 20MHz (but only does about 5V pk-pk at 50 Ohms)
The Defpom's Repair Channel well that makes sense if it’s designed for 600 ohms. Obviously that’s still fine for most none rf application. I don’t hate it. It’s good for the price.
Happy New Year Scott, all the best for 2019 to you and the missus.
Can this be configured internally to output a 2 tone test for SSB linearity ?
Cheers
I bought the same unit thru Amazon and channel #2 would only generate a sine wave. Channel #1 worked OK but no matter what I did, I couldn't get channel #2 to generate a square wave or any other wave besides sine. Also, it was DOA out of the box. After removing the cover, I could see the ribbon cable was undone from the display. Plugging it back in got it operational. I returned that one for a refund and bought another one which should arrive this week. Hopefully it works OK.
Maybe the voltage wouldn't drop if your scope had higher bandwidth?
thanks for the review
Try adding a 50 ohm load, shouldn't roll off.
its output voltage does jump around when loaded with 50 Ohms, when set to 5V it is doing at most 2.8V pk-pk at 40MHz, at 60MHz it is only 1.4V pk-pk. I did find though that you can set it to do 20V below 20MHz (but only does about 5V pk-pk at 50 Ohms)
@@TheDefpom I have a 40MHz JDS6600, It's flat to 40 MHz.
What about the PC software that goes with it? Seems like a review should show the software that contains about half the functions of the device.
You are right, I should have looked into that side of things also, maybe I will do that in a future video.
@@TheDefpom for what it is, the software ain't bad and makes it way easier to adjust things.
and for anybody been down the never-ending VISA road of Driver nightmares, this crude FEELTEC software are very easy and just plug the USB cable in and it works and connected, though the FONT would be nice if one could change that..
It seems the device will also run on a bare 5v USB input and no AC, but how much it crimble the functionality, not sure, all the not too demanding waveforms seems loyal from the 5v USB supply-.
I have this same unit and found it useless for radio alignment because you cant turn the output level low enough without using attenuators. It great for PWM and robotics stuff.
Good to know..the sweep function got my attention...will give it a miss .
73s
Awesome, I have one of these..
did you terminate your coax between the generator and the scope? you will loose bandwidth if you don't.
I was going to say to add tape to that buzzer, because it was louder than your voice.
Can the output be adjusted down to microvolts?
I asked the same question plus more in a lengthy comment a couple hours ago..... We need uV for tuning the sensitivity on 2 way radios...
if i wanna calibrate an ad converter with a sine wave do you have in mind the perfect cheapest function generator for this task ? i mean im reading 14 bit ON THIS ONE do i need a 24 BIT FOR MY 24 bit AD converter ?
Parabéns, gostaria de saber se ele gera sinal de rf de 400KHZ - 30 MHZ, para ajustes de F.I de radios antigos, obrigado!
hi can this unit generate the 2 tones for ssb linearity?
cheers
Is the output flat or is it all over the place. Should be flat into a 50 Ohm load
its output voltage does jump around when loaded with 50 Ohms, when set to 5V it is doing at most 2.8V pk-pk at 40MHz, at 60MHz it is only 1.4V pk-pk. I did find though that you can set it to do 20V below 20MHz (but only does about 5V pk-pk at 50 Ohms)
hi, please check - jitter in squr is present?? thx
New FY6900 has "Magic pulse function" for lower jitter in squr. ua-cam.com/channels/lPns1JKndpSMahTus8hpFA.html
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Looks like the subtitle generator and me can't understand anything... :-(
When will the English learn how to speak English? Lol!
Struggling with a UK regional accent are you?
This is Australian. He' speaking Esperanto. It's not English.
@@felixcat4346 Or even 'Strellian....? Lol!
@@felixcat4346 Your wrong , he is a Kiwi, but he has a bit of pommy accent as well so he may have moved to NZ . sorry to spoil your day.
@@felixcat4346 He is from NZ , sorry to spoil your day, and he does have a bit of pommy in him .
Difficult to understand for not english natives, you're speaking much too fast.
Click at the video right-bottom corner: Settings > Playback Speed > 0.75 (click on the video screen to close the window). Press play to enjoy the details.
Really difficult, but I think it is because of the accent, not the speed. Even the subtitles generator is totally lost (and it is a really good in others videos with indian, russian and chinese accent).
@@TheDefpom lmao!
How low can you turn the frequency?
1 Micro Hz!
@@anvou2 wow nice. Thx
@@PhotMTube You can always edit your comments or delete(caution: related answers will vanish too) if necessarily. Just click on the 3-dots symbol right of the comment. .
All your comments are accessible over main menu (left top), -history, then right side -comments. (ua-cam.com/users/feedhistory/comment_history)
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Witam czy na tym generatorze jest możliwość ustawić sygnał na pzykład 465 khz AM zmodulowany 1 khz sinus i zapisać w pamięci jeśli tak to proszę o pokaz . i analogicznie przykładowo 10,7 FM modulowane 1 khz sinus . proszę o pomoc .chciłbym użyć tych sygnałów do strojenia radia
rødgrød med fløde
Software upgradable ?
I don't know, I haven't actually read the manual yet.
Trailtraveller no it isn’t, I contacted the manufacturer and they told me I would have to send it back to them for firmware update.
@@caulktel I saw a post from them about some firmware update for users. I am not sure if they meant that you had to set it back or that users could do it themselves.
Upgrade only via PC software.
Needs a numeric keypad
That did feel like something it needed yes, but it was still easy to use without it.
You can hook it to the PC and use the software that goes with it to do a ton more.
Ascel ae20125
Nasty. Non isolated output.
Yes I was a bit torn on that aspect, whilst I like ground referencing all my gear, sometimes it is nice to have floating output terminals, but I think the most important thing there is that you actually know if they are ground referenced, if you know all your gear is ground referenced then at least you are careful to allow for it, usually.